Cheapest return DEN–FRA flights, December

AirHint found the following cheapest return flights from Denver (DEN) to Frankfurt (FRA) in December 2026 (see full year).

Return flights

11 Dec - 27 Dec Turkish Airlines
22 Dec - 05 Jan jetBlue
19 Dec - 02 Jan Icelandair

Also check the deals for one-way flights from Denver to Frankfurt in December.

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